Question

a student hypothesized that pillar coral eat and digest zooxanthellae for energy. which observation would cause the student to change this hypothesis? a. the zooxanthellae in a pillar coral's body are alive. b. pillar coral are a type of coral that needs sunlight to survive. c. the pillar coral are an important part of many coral reefs. d. zooxanthellae are a type of phytoplankton found in the ocean.

Answer 1

a. the zooxanthellae in a pillar coral's body are alive.

Step-by-step explanation:

Answer 2

I think the correct answer from the choices listed above is option A. The observation that would cause the student to change his hypothesis is that the zooxanthellae in a pillar coral's body are alive. From the choices, this seems to be the only observation that can be done by the student.